Home / 90,859.74-125,386.43-50,572.64

Finding the Fourth Proportional to 90,859.74, 125,386.43 and 50,572.64

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Solution

The fourth proportional to 90,859.74, 125,386.43 and 50,572.64 is: 69,790.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,859.74 : 125,386.43 = 50,572.64 : x
  2. Step 2: Convert to fraction form
    90,859.74/125,386.43 = 50,572.64/x
  3. Step 3: Cross multiply
    90,859.74x = 125,386.43 × 50,572.64
  4. Step 4: Simplify right side
    90,859.74x = 6,341,121,905.48
  5. Step 5: Solve for x
    x = 6,341,121,905.48/90,859.74
  6. Step 6: Final answer
    x = 69,790.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.